Scientists may have found one of the main sources of rocky material for the solar system, forming diverse populations of baby ...

Upending long-held models of early planetary evolution, researchers at the University of Colorado Boulder have published the first definitive evidence that a massive world—possibly as big as the Moon ...

Another puzzle piece in how our solar system formed. The post Scientists Spot What Appears to Be a Ring-Shaped “Planet ...

The early solar system may have been far more chaotic than we ever imagined. A new study published in Icarus suggests that ...

New research suggests the moons of Jupiter and Uranus may hint that our planetary neighborhood once had a third ice giant.

Four-and-a-half billion years ago, a massive world—possibly as big as the moon or even Mars—orbited our sun before crashing ...

Astronomers in a recent breakthrough have found seven exoplanets, potentially harbouring magnetic fields, similar to Earth ...

Add Yahoo as a preferred source to see more of our stories on Google. Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than ...

Scientists may have identified one of the Solar System’s most important “planet factories” hidden just beyond Jupiter.

Our solar system is a smashing success. A new study suggests that from its earliest period — even before the last of its nebular gas had been consumed — Earth’s solar system and its planets looked ...

The Sun is an incandescent but benevolent dictator. For billions of years, it’s kept our star system well organized through the influence of its powerful gravity. All the planets revolve around it on ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't been for lack of trying. According to a new paper by Thomas Winterhalder of ...